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Search for long distance correlations between extensive air showers detected by the EEE network
- Source :
- BASE-Bielefeld Academic Search Engine
- Publication Year :
- 2018
-
Abstract
- A search for long distance correlations between individual Extensive Air Showers (EAS) detected by pairs of MRPC telescopes of the Extreme Energy Events (EEE) network was carried out. The search for an anomaly in these events is the purpose of our work. A dataset obtained by all the possible 45 pairs between 10 EEE cluster sites (hosting at least two telescopes), located at relative distances between 86 and 1200km, was analyzed, corresponding to an overall period of 3968 days time exposure. To estimate the possible event excess with respect to the spurious rate, the number of coincidence events was extracted as a function of the time difference between the arrival of the showers in the two sites, from $\pm 10$ s to the smallest time interval where events are still observed. The analysis was done taking into account both the time and orientation correlation between the showers detected by the telescope pairs. A few candidate events with unusually small time difference and angular distance were observed, with a p-value sensibly smaller than a confidence level of 0.05.
- Subjects :
- Physics
010308 nuclear & particles physics
Angular distance
Cosmic Rays, air showers, Extreme Energy Events, Multigap Resistive Plate Chambers
Anomaly (natural sciences)
array telescope
General Physics and Astronomy
Cosmic ray
Extensive Air Shower
Astrophysics
01 natural sciences
Coincidence
Confidence interval
law.invention
Telescope
Physics and Astronomy (all)
law
0103 physical sciences
MRPC
Cosmic rays, Extensive Air Showers, MRPC
010306 general physics
Spurious relationship
Event (particle physics)
cosmic ray
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- BASE-Bielefeld Academic Search Engine
- Accession number :
- edsair.doi.dedup.....85e4cd8b3b1bc1dc2e05fd7e24d148bd